<template>
  <div id="login">
    <!-- 头像区域 -->
    <div class="login_box">
      <div class="avatar_box">
        <img src="../../assets/img/big-loading.gif" alt="" />
      </div>
      <!-- 表单区域 -->
      <el-form
        ref="loginFormRef"
        label-width="0"
        :rules="loginrules"
        :model="loginForm"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="el-icon-user-solid"
            placeholder="请输入名称"
            type="text"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="el-icon-key"
            placeholder="请输入密码"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="login_btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      //   登录数据表单绑定对象
      loginForm: {
        username: "",
        password: "",
      },
      //   表单验证规则
      loginrules: {
        username: [
          { required: true, message: "请输入名称", trigger: "blur" },
          { min: 3, max: 8, message: "长度在 3 到 8 个字符", trigger: "blur" },
        ],
        password: [
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个数字或字母",
            trigger: "blur",
          },
        ],
      },
    };
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      // 返回的是promise，返回数据可以简化
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("login", this.loginForm);
        if (res.meta.status !== 200) {
          return alert("登录失败！");
        } else alert("登录成功！");
      });
    },
  },
};
</script>

<style lang="less" scoped>
#login {
  background-color: #ccc;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 1px solid #e5e5e5;
    position: absolute;
    left: 50%;
    padding: 10px;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
}
.login_btns {
  float: right;

  button {
    padding: 12px 38px;
  }
}
</style>